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import * as am5 from "@amcharts/amcharts5";
import * as am5xy from "@amcharts/amcharts5/xy";
import am5themes_Animated from "@amcharts/amcharts5/themes/Animated";
export function makeChart() {
// Create root element
// https://www.amcharts.com/docs/v5/getting-started/#Root_element
const root = am5.Root.new("chartdiv");
// Set themes
// https://www.amcharts.com/docs/v5/concepts/themes/
root.setThemes([
am5themes_Animated.new(root)
]);
// Specify date fields, so that they are formatted accordingly in tooltips
// https://www.amcharts.com/docs/v5/concepts/formatters/data-placeholders/#Formatting_placeholders
root.dateFormatter.setAll({
dateFields: ["valueX"]
});
// Create chart
// https://www.amcharts.com/docs/v5/charts/xy-chart/
const chart = root.container.children.push(am5xy.XYChart.new(root, {
panX: false,
panY: false,
wheelX: "panX",
wheelY: "zoomX"
}));
// Add cursor
// https://www.amcharts.com/docs/v5/charts/xy-chart/cursor/
const cursor = chart.set("cursor", am5xy.XYCursor.new(root, {
behavior: "zoomX"
}));
cursor.lineY.set("visible", false);
// Generate random data
let date = new Date();
date.setHours(0, 0, 0, 0);
let value = 100;
function generateData() {
value = Math.round((Math.random() * 10 - 5) + value);
am5.time.add(date, "day", 1);
return {
date: date.getTime(),
value: value
};
}
function generateDatas(count) {
const data = [];
for (let i = 0; i < count; ++i) {
data.push(generateData());
}
return data;
}
// Create axes
// https://www.amcharts.com/docs/v5/charts/xy-chart/axes/
const xAxis = chart.xAxes.push(am5xy.DateAxis.new(root, {
maxDeviation: 0.5,
baseInterval: {
timeUnit: "day",
count: 1
},
renderer: am5xy.AxisRendererX.new(root, {
pan:"zoom"
}),
tooltip: am5.Tooltip.new(root, {})
}));
const yAxis = chart.yAxes.push(am5xy.ValueAxis.new(root, {
maxDeviation:1,
renderer: am5xy.AxisRendererY.new(root, {
pan:"zoom"
})
}));
// Add series
// https://www.amcharts.com/docs/v5/charts/xy-chart/series/
const series = chart.series.push(am5xy.LineSeries.new(root, {
name: "Series",
xAxis: xAxis,
yAxis: yAxis,
valueYField: "value",
valueXField: "date",
tooltip: am5.Tooltip.new(root, {
labelText: "{valueX}: {valueY}"
})
}));
// Add scrollbar
// https://www.amcharts.com/docs/v5/charts/xy-chart/scrollbars/
chart.set("scrollbarX", am5.Scrollbar.new(root, {
orientation: "horizontal"
}));
// Set data
let data = generateDatas(1200);
series.data.setAll(data);
// Make stuff animate on load
// https://www.amcharts.com/docs/v5/concepts/animations/#Forcing_appearance_animation
series.appear(1000);
chart.appear(1000, 100);
return { root, chart };
}